Synthesis, Crystal Structure and Insecticidal Activity of N-(pyridin-2-ylmethyl)-1-phenyl-1,4,5,6,7,8-hexahydrocyclohepta [c]pyrazole-3-carboxamide
文献类型： 外文期刊
作者： Deng Xi-Le 2 ; Zhou Xiao-Mao 1 ; Wang Zan-Yong 1 ; Rui Chang-Hui 3 ; Yang Xin-Ling 2 ;
作者机构： 1.Hunan Acad Agr Sci, Hunan Agr Biotechnol Res Inst, Changsha 410125, Hunan, Peoples R China
2.China Agr Univ, Dept Appl Chem, Coll Sci, Beijing 100193, Peoples R China
3.Chinese Acad Agr Sci, Inst Plant Protect, Lab Integrated Pest Management Crops, Minist Agr, Beijing 100193, Peoples R China
关键词： synthesis; bicyclic pyrazole amide; crystal structure; insecticidal activity
期刊名称：CHINESE JOURNAL OF STRUCTURAL CHEMISTRY （ 影响因子：0.893； 五年影响因子：0.603 ）
ISSN： 0254-5861
年卷期： 2018 年 37 卷 4 期
页码：
收录情况： SCI
摘要： The title compound N-(pyridin-2-ylmcthyl)-l-phenyl-1,4,5,6,7,8-hexahydrocyclohepta[c]pyrazole-3-carboxamide 5 (C21H22N4O, M-r = 346.42) has been synthesized and structurally characterized by IR, H-1 NMR, C-13 NMR, H RMS and single-crystal X-ray diffraction. The crystal crystallizes in monoclinic system, space group P2(1)/n with a = 8.668(2), b = 22.236(4), c = 9.539(2) #x212B;,beta = 108.68(3)degrees, V= 1786.4(7) #x212B(3), Z = 4, Dx= 1.288 g/cm(-3), F(000) = 736, mu(MoKa) = 0.649 mm(-1), the final R = 0.0354 and wR = 0.0933 with 3234 observed reflections with I > 2 sigma(I). The benzene and pyrazole rings are nearly coplanar with a dihedral angle of 50.977(46)degrees. The dihedral angle between the central pyrazole and pyridine rings is 11.688(46)degrees. No classical hydrogen bonds were found in the molecules. Two adjacent molecules in crystal packing of compound 5 were linked by two intramolecular hydrogen-bonding interactions C(15)-H(15)...O(l) to generate a stable structure. Compound 5 had weak insecticidal activity against the diamondback moth (Plutella xylostella), but exhibited good activity against cotton bollworm (Helicoverpa armigera).
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